Kinds of Couplings
Category: Couplings
Short article Tags:Couplingcouplingsdiaphragm couplingsdisc couplingsgear couplingsgrid couplingsjaw couplingsmaterial flexing couplingsmechanical flexing couplingsroller chain couplingssleeve couplingstire couplingstypes of couplings
Coupling fall into two key categories: Materials Flexing and Mechanical Flexing. The materials flexible kinds get their versatility from stretching or compressing a resilient materials, including rubber, or through the flexing of thin metallic discs or grid. Material flexing couplings don’t call for lubrication, using the exception of grid couplings.

The mechanical flexing couplings accept misalignment from rocking, rolling or sliding of metal surfaces. All metal mechanical flexing couplings call for lubrication.

Materials Flexing Couplings
Materials flexing couplings typically tend not to call for lubrication and operate in shear or compression and therefore are able to accept angular, parallel and axial misalignment.

Examples of material flexing couplings are jaw, sleeve, tire, disc, grid and diaphragm couplings.
– Jaw Couplings
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The jaw coupling is really a material flexing coupling that transmits torque thru compression of an elastomeric spider insert placed involving two intermeshing jaws.
Flex component is typically made of NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Utilized for torsional dampening (vibration)
Lower torque, basic purpose applications
– Sleeve Coupling
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The sleeve coupling transmits reduced to medium torque amongst connected products in shear through an elastomeric insert with male splines that mate with female hub splines. The insert material is typically EPDM, Neoprene or Hytrel and also the insert can be quite a one particular or two piece style and design.
Reasonable misalignment
Torsional dampening (vibration)
Finish float with slight axial clearance
Lower to medium torque, general purpose applications
– Tire Coupling
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These couplings possess a rubber or polyurethane component connected to two hubs. The rubber component transmits torque in shear.
Reduces transmission of shock loads or vibration.
Higher misalignment capability
Easy assembly w/o moving hubs or connected gear
Reasonable to high velocity operation
Broad selection of torque capacity
– Disc Coupling
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The disc coupling?¡¥s principle of operation has the torque transmitted through flexing disc factors. It operates as a result of tension and compression of chorded segments on the common bolt circle bolted alternately between the drive and driven side. These couplings are normally comprised of two hubs, two discs packs, and a center member. Just one disc pack can accommodate angular and axial misalignment. Two disc packs are required to accommodate parallel misalignment.
? Permits angular parallel and axial misalignment
? Can be a correct constrained finish float style
? A zero backlash design and style
? Higher pace rating and balance
– Diaphragm Coupling
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Diaphragm couplings utilize a single or possibly a series of plates or diaphragms for that versatile members. It transmits torque in the outside diameter of a flexible plate towards the within diameter, across the spool or spacer piece, and then from within to outside diameter. The deflection of the outer diameter relative towards the inner diameter is what occurs when the diaphragm is subject to misalignment. By way of example, axial displacement attempts stretch the diaphragm which results within a mixture of elongations and bending from the diaphragm profile.
? Allows angular, parallel and higher axial misalignments
? Used in high torque, higher pace applications
Mechanical Flexing Couplings
The mechanical flexing couplings accept misalignment from rocking, rolling or sliding of metal surfaces. All metal mechanical flexing couplings need lubrication.
Examples of mechanical flexing couplings are gear, grid and roller chain couplings.
– Gear Couplings
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Gear couplings transmit the highest sum of torque plus the highest volume of torque inside the smallest diameter of any versatile coupling.

Each and every coupling includes two hubs with crowned external gear teeth. The hubs mesh with two internally splined flanged sleeves which are bolted with each other. Gear couplings accommodate angular and axial misalignment by the rocking and sliding from the crowned gear teeth against the mating sleeve teeth. Parallel misalignment is accommodated by possessing two adjacent hub/sleeve flex points. Gear couplings call for periodic lubrication based on the application. These are delicate to lubrication failures but when thoroughly installed and maintained, these couplings have a support daily life of three to 5 years and in some instances they might final for many years.
– Grid Couplings
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Grid couplings include 2 radially slotted hubs that mesh by using a serpentine strip of spring steel the grid gives torsional damping and versatility of an elastomer but the strength of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from 1 hub to your other by means of the rocking and sliding of a tapered grid inside the mating hub slots. The grid cross segment is usually tapered for far better hub get hold of and less difficult assembly. As there is motion amongst contacting hub and grid metal components, lubrication is needed.
– Roller Chain Coupling
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Roller Chain style couplings include two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are utilised for reduced to moderate torque and pace applications. The meshing of the sprocket teeth and chain transmits torque and also the connected clearances accommodate angular, parallel and axial misalignment.

Chain couplings require periodic lubrication based on the application. The lubrication is usually brushed onto the chain along with a cover is applied to assist hold the lubrication within the coupling.
To discover additional about all of the various kinds of couplings, visitthe EP Coupling Page.
Mechanical Power Transmission ¡§C Shaft Coupling replacement technologies.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw sort shaft couplings
EP Coupling would be the latest in shaft coupling design, beam, bellows and jaw couplings all function at higher pace but very low angle of misalignment.
Around the other finish universal joints can deal with higher amounts of misalignment but at reduced speeds and frequent servicing.
EP Coupling being a hybrid versatile coupling can do each.
Enhancing on current coupling technology we supply several unique versions which lets a 0 to 25?? operational angle of utilization
No inner components ¡§C No bearings to become continuously lubricated and replace , this saves you money and time.
A single Piece design signifies no broken yokes or hubs.
Large speed- Runs at up to 7000 RPM
Torsionally rigid at reduced angles of misalignment
Scalable ¡§C the EP unit might be scaled up or right down to suit person consumer prerequisites.?
Customizable ¡§C Have a particular form/function the spring/ball settings is usually altered to match most applications.
Diverse shaft sorts or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being made from two counter wound springs signifies it absorbs shock force without damage
Spring style and design lets greater angle of usage without damaging components?
ISO9001 2007 manufactured
The patented EP design and style will allow for larger angle of usage without deformation with the torque transfer seen with Universal Joints, giving the performance of a Universal joint without the continuous servicing.
So how does it do the job? The style is quite simple, the sets of springs are counterwound so one tightens while the other loosens and visa versa.
This lets the coupling to get the job done in both forward and reverse.
Its simplicity doesn?¡¥t end there, the only thing during the center from the coupling is actually a single ball bearing this makes it possible for the coupling to pivot allowing for maximum flexibility, this usually means no bearings.
Bearings are a constant maintenance issue, they cannot run in harsh environments like water, mud, sand, dust and dirt as any intrusion by any of those elements leads to rapid failure.
So no bearings indicates no consistent servicing or worse substitute.
A single piece layout ¡§C As the product is just hubs and springs the things that can go wrong are greatly reduced, so no cracked yokes or broken propeller joints, no worn out bearings.
Torque ¡§C the bigger the superior The flexible coupling is powered by the springs, but because it is really a pair of springs it effectively is a metal bar, add the ball bearing it turns into a flexible metal bar.
So this suggests far more torque and still have the flex that would destroy a standard universal or continuous velocity joint.
Substantial speed/low speed ¡§C Now flex coupling technologies is split into two main areas, higher speed, very low torque, small angle of misalignment and lower velocity, larger torque, higher angle of misalignment.
Distinct couplings applications, same product ¡§C Flexible/High pace couplings are Beam couplings, elastomeric, bellows couplings and jaw type couplings which can run at large speed maintain torsional rigidity but traditionally can only run at a few degrees of misalignment before starting to wear out.
Add to that because of that small misalignment angles , the sum of torque these flex couplings can take care of is quite small.
EP?¡¥s flexible coupling remains torsionally rigid at decrease angles at high speed, with far a lot more torque than say a standard beam coupling, with the added versatility if required.
Reduce pace couplings like universal joints can perform at large torque and larger degrees of misalignment but they have inner components that need to become continually maintained.
If not greasing for lubrication and bearing substitute and the angles of misalignment they might operate at is restricted as well, as too much will lead to bearing failure.
Our flex coupling can meet the higher torque demands as well as the increased versatility while needing no servicing as you would have to with using universal joints.
A single product multiple uses. Why would you use various products if you didnt need to when one product will do it all, a no maintenance, high speed, substantial torque, higher angle of misalignment capable flexible coupling.
Three models and counting ¡§C To date we have three models the czep150, czep300 and the czep500
czep150 is capable of handling 150ft lbs of torque and be used at 25??.
czep300 is capable of handling 300 ft lbs of static torque and operate at angles of 25??
czep500 can deal with 500ft lbs of static torque .
We are looking at what the market demands so bigger or smaller we will be adding much more as time goes on.
We have all the splines and keyways you need to fit your equipment.
We want to operate with you, so contact us and lets get the job done with each other to solve your flexible coupling issues today.
Viscous coupling is filled with silicone and is not computer controlled. A series of plates with holes and slots turn in the silicone fluid. Some plates are attached for the front axle driveshaft and some are attached towards the rear axle driveshaft. Normally the plates turn at the same rate without relative motion. The silicone fluid becomes very viscous due to it’s viscoelasticity as soon as the plates rotate at differentiating speed. The silicone fluid resists the shear generated in it from the plates with differentiating pace, causing a torque transfer in the faster spinning axle towards the slower spinning axle. Therefore, slight velocity difference is required for torque transfer.
If the rear wheels and driveshaft are slipping and turning faster than the front, friction amongst the plates increases due on the generated shear during the fluid, slippage is reduced, the rear wheel spin is reduced as well as the torque through the input shaft is transferred for the front.
A viscous coupling is usually installed in two ways:
viscous coupling acting instead of a center differential
Viscous Coupling Acting Instead Of a Center Differential
In this case, in normal conditions, all power is transferred to just one axle. 1 part in the viscous coupling is linked for the driving axle, another part is linked to your driven axle. When driving wheels slip, viscous coupling locks and torque is transferred on the other axle. This is an automatic all wheel drive system.
The disadvantage of the viscous coupling is that it engages too slowly and enables for excessive wheelspin before transferring torque to another wheels. This is especially critical in automatic all wheel drive systems – when cornering under acceleration, the rear end is engaged that has a slight delay, causing sudden change from the car’s behaviour fron understeer to oversteer. Also, when taking-off in sand, front wheels can become bogged down before all wheel drive is engaged.
In an attempt to reduce the coupling’s activation time, czh always transfers 5% of torque to rear wheels (this is achieved by rear driveshaft rotating slower than front driveshaft in normal conditions, causing viscous fluid warm-up and slight solidification).
At the same time, pre-tensioning the coupling too much leads to undesireable transmission wind-up and makes the system too delicate to uneven tread wear on front and rear tires. This is why Volvo first reduced the pre-tensioning in 2000 and after that replaced the viscous coupling with epdex clutch on their all wheel drive vehicles in model year 2003
Viscous Coupling Integrated Into The Center Differential
In this case, all wheels are powered at all times. Viscous coupling is integrated into the center differential. Central differential distributes power to all wheels and lets them turn at diverse speeds while cornering. When excessive wheelspin takes place on a single on the axles, viscous coupling locks the differential and equalizes the speeds of both axles. Torque is transferred to wheels that have traction. This is really a full-time all wheel drive system.
Viscous coupling can also be integrated into the rear differential.
Precision Versatile Shaft Couplings
Clamping Precision Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings supply far more holding energy than set screw couplings without marring the shaft.
Set Screw Precision Versatile Shaft Couplings
Tighten the set screws to fasten these couplings to your shaft. Set screws bite into the shaft to hold the couplings in place.
Clamping Vibration-Damping
Precision Flexible Shaft Couplings
Clamping Vibration-Damping Precision Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings offer extra holding energy than set screw couplings without marring the shaft.
Set Screw Vibration-Damping
Precision Flexible Shaft Couplings
Set Screw Vibration-Damping Precision Flexible Shaft Couplings
Each and every hub includes a set screw, which bites into your shaft to hold the coupling in place.
High-Misalignment Vibration-Damping
Precision Versatile Shaft Couplings
High-Misalignment Vibration-Damping Precision Flexible Shaft Couplings
Also called double-loop couplings, these possess a flexible center that reduces vibration and compensates for large parallel and angular shaft misalignment.
Servomotor Precision Versatile Shaft Couplings
In a position to take care of large twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications.
High-Speed Precision Flexible Shaft Couplings
That has a bellows concerning two hubs, these couplings manage all varieties of misalignment and are good for precision stepper and encoder motion-control applications.
High-Misalignment Precision
Flexible Shaft Couplings
High-Misalignment Precision Versatile Shaft Couplings
Specially designed ridges allow these bellows couplings to compensate for more misalignment than other precision couplings?auseful for low-torque, high-precision applications like instrumentation and motion control.
Electrically Isolating Servomotor
Precision Versatile Shaft Couplings
Electrically Isolating Servomotor Precision Flexible Shaft Couplings
An acetal plastic spacer at the center of these couplings insulates bearings, encoders, and other shaft elements from stray electric current. Use them with servomotors, which sometimes generate current that travels down the shaft and can damage circuit boards, interfere with readings, and cause wear on bearing raceways.
High-Speed Servomotor Precision
Flexible Shaft Couplings
High-Speed Servomotor Precision Flexible Shaft Couplings
Connect shafts and ball screws to high-speed servomotors and stepper motors?athese shaft couplings take care of four times far more pace than standard servomotor couplings.
Flexible Shaft Couplings
Set Screw Versatile Shaft Couplings
Every single hub includes a set screw (unless noted), which bites into your shaft to hold the coupling in place.
Clamping Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings give more holding power than set screw couplings without marring the shaft.
High-Torque Set Screw Flexible Shaft Couplings
The thick split spider on these couplings can take on twice as much torque as standard spiders, extending the lifestyle of bearings, seals, and motors.
Clamping High-Parallel-Misalignment
Flexible Shaft Couplings
Clamping High-Parallel-Misalignment Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft.
Set Screw High-Parallel-Misalignment
Flexible Shaft Couplings
Set Screw High-Parallel-Misalignment Flexible Shaft Couplings
Just about every hub includes a set screw, which bites into your shaft to hold the coupling in place.
High-Angular-Misalignment Flexible Shaft Couplings
Also known as Schmidt couplings, these manage increased angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re typically utilized with conveyor rollers and roller feeds in printing and packaging machines.
Machinable-Bore Flexible Shaft Couplings
Customize the bore of these versatile couplings to align uncommon shaft sizes as well as shafts that have become undersized from wear or oversized from coatings.
Shock-Absorbing Versatile Shaft Couplings
A strip of versatile spring steel wraps around the teeth of the two hubs to absorb sharp, momentary load increases that can come from motor startups, emergency braking, or sudden impact with hard objects.
Metal-Detectable Versatile Shaft Couplings
Designed for use in food-processing applications, where a fraying spider could contaminate a batch, these couplings possess a metal-detector-grade rubber spider. Small pieces of metal inside the rubber will set off a metal detector, alerting you on the problem.
Cleaned and Bagged Flexible
Heat-Resistant Shaft Couplings
Cleaned and Bagged Flexible Heat-Resistant Shaft Couplings
Flexible Shaft Couplings for Continuous Motion
High-Speed Vibration-Damping
Versatile Shaft Couplings
High-Speed Vibration-Damping Versatile Shaft Couplings
Use these gear-shaped couplings for high-speed and high-torque applications.
Vibration-Damping Versatile Shaft Couplings
A versatile tire on these couplings safeguards components on your shafts by reducing vibration and shock.
High-Torque Flexible Shaft Couplings
Having a rugged roller-chain design, these couplings present excellent torque and angular misalignment capacities.
Ultra-High-Torque Versatile Shaft Couplings
With a rigid gear layout, these steel couplings transmit additional torque than other couplings of the same size.
Lightweight Flexible Shaft Couplings
Created with lightweight nylon sleeves, these gear couplings call for less energy to move than other high-torque versatile couplings. They compensate for parallel, angular, and axial misalignment.
Noncontact Magnetic Shaft Couplings
Magnetic force transfers torque from 1 half of these couplings to your other; there?¡¥s no get in touch with in between the elements, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.